The NCR-80 may look cheap, but I see it as classic-styled. It really is built in the way of old Cherry, at least on the outside.
The plastic won't crack or come apart on its own. Without dampening, it is very light and easily moveable, probably a goal of the original boards.
So I think it fulfills the role of a classic G80-style board very well.
If you want luxury, you can use the best parts - smooth hand-built linears + the best stabilizers [TX, Zeal or C3 V3]. I have experience with three of them, and there's no in-built defects: switches and keycaps sit straight on the board, and stabilizers work well if built properly. The LEDs work perfectly, and the case can easily handle aftermarket cables [if you want something fancy].
The adjustable feet are another issue - they feel as if they shouldn't be toggled too much.
Anyway, the cases go great with expensive PBT like OG Cherry or CRP, as well as GMK and other high-end ABS, and high-profile like MT3. So these can be really dolled up. I've even seen switch LEDs installed on them.